[reactos] 01/01: [WIDL] Fix type offset calculation for toplevel pointers to non-basetypes.

[Eric Kohl]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=d2540090d30effc6961bf…

commit d2540090d30effc6961bf713625baf521c6123f0
Author:     Eric Kohl <eric.kohl(a)reactos.org>
AuthorDate: Sun Dec 15 18:21:11 2019 +0100
Commit:     Eric Kohl <eric.kohl(a)reactos.org>
CommitDate: Sun Dec 15 18:21:11 2019 +0100

    [WIDL] Fix type offset calculation for toplevel pointers to non-basetypes.
    
    WIDL used the wrong type information when a pointer to a non-basetype is used as a
functions parameter. For example, a 'wchar_t**' would be treated as a
'wchar_t*'.
    
    This patch will be sent upstream.
---
 sdk/tools/widl/typegen.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sdk/tools/widl/typegen.c b/sdk/tools/widl/typegen.c
index 0bca062ab4b..4a791465821 100644
--- a/sdk/tools/widl/typegen.c
+++ b/sdk/tools/widl/typegen.c
@@ -3639,6 +3639,7 @@ static unsigned int write_type_tfs(FILE *file, int indent,
     case TGT_POINTER:
     {
         enum type_context ref_context;
+        unsigned int toplevel_offset = *typeformat_offset;
         type_t *ref = type_pointer_get_ref(type);
 
         if (context == TYPE_CONTEXT_TOPLEVELPARAM)
@@ -3656,7 +3657,7 @@ static unsigned int write_type_tfs(FILE *file, int indent,
             offset = write_type_tfs(file, indent, attrs, ref, name, ref_context,
typeformat_offset);
             if (context == TYPE_CONTEXT_CONTAINER_NO_POINTERS)
                 return 0;
-            return offset;
+            return (context == TYPE_CONTEXT_TOPLEVELPARAM) ? toplevel_offset : offset;
         }
 
         offset = write_type_tfs( file, indent, attrs, type_pointer_get_ref(type), name,